autoexact Ignition Coil and Iridium Spark Plug Kit for Toyota/Lexus 3.5L V6 — Set of 6, Pre-Gapped OE-Style Replacements

This Autoexact kit contains six direct-replacement ignition coils and six pre-gapped iridium spark plugs engineered to fit Toyota and Lexus 3.5L V6 engines listed in the fitment guide.

When ignition coils or spark plugs wear, engines can run rough, misfire, or trigger a check engine light. This complete kit combines coil packs and fine-wire iridium plugs sized and pre-tested to match OE performance targets for many 2005–2018 Toyota and Lexus 3.5L applications. It’s supplied as a single-package tune-up to save time sourcing parts separately and to reduce the chance of repeat faults from mismatched components.

How will this coil and plug kit affect drivability?

Replacing both coils and spark plugs together restores a consistent spark across all cylinders, which improves combustion stability and reduces symptoms like rough idle, hesitation, and vibration. While results depend on the vehicle’s overall condition, the kit is designed to return ignition reliability to near-original levels when ignition parts are the root cause.

• Complete set of six coils and six iridium plugs for simultaneous replacement
• Pre-gapped plugs for correct spark gap out of the box
• Coils with epoxy potting and heat-resistant housings for longer life
• Helps address misfires, poor acceleration, and hard starting linked to ignition wear

What vehicles and part numbers does this kit fit?

This kit is tailored for many Toyota and Lexus V6 3.5L models—verify your year, make, model, and engine before ordering. It is sold as a direct replacement for OE references like UF487, 6619, and LFR6AIX-11 where applicable. Cross-check the full fitment list to confirm compatibility with your vehicle.

• Common compatible models include: Camry, Avalon, Highlander, RAV4, Sienna, Venza, RX350, RX450h, ES350 (various years)
• Designed to replace UF487 and equivalent factory coil and iridium plug part numbers
• Fitment verification recommended to avoid incorrect purchases

What are the construction and quality features of the kit?

The coils use fully wound primary and secondary copper windings and an OE-aligned PCB module to maintain steady spark delivery. Epoxy potting and a heat-resistant PBT housing reduce moisture intrusion and resist vibration, while fine-wire iridium plugs require less voltage to fire and are pre-gapped for convenience.

• High-voltage tested coils with approx. 35±2 kV secondary output verification
• Epoxy sealing and PBT housings to resist heat and moisture
• Fine-wire iridium plugs pre-gapped — recommended torque 25–30 N·m
• Factory-applied dielectric grease to ease installation and protect terminals

How easy is installation and what support is available?

The kit is built as a direct-replacement package intended for basic DIY installation with common hand tools. Replacing all coils and plugs at once minimizes repeat labor and parts-mismatch issues. If you’re uncertain about fit or need guidance, Autoexact offers lifetime technical support and a two-year warranty backing.

• Supplied as a full six-cylinder replacement for convenience
• Typically installed with basic tools; follow vehicle torque specs
• Lifetime technical support and 2-year warranty for buyer confidence
• Email support available — include VIN or vehicle details for fit checks

Who is this for: Owners and independent mechanics who need a coordinated ignition tune-up for Toyota or Lexus 3.5L V6 vehicles and prefer a single, quality-checked kit instead of sourcing coils and plugs separately. It’s well suited for vehicles showing ignition-related symptoms (misfire codes P0300–P0308, rough idle, hard starting) where worn coils or spark plugs are suspected, and for anyone seeking an OE-aligned replacement with manufacturer testing and support.